Nightly Compiler has internal error with dependent crate lspower

[kitsonk]

I had been on an older version of nightly and the project compiled fine, I updated to the latest nightly and now the build fails on compiling the lspower crate v6.0.0 at the following line:

Code

Err(e) => log::error!("invalid JSON in `telemetry/event` notification: {}", e),

Meta

rustc --version --verbose:

rustc 1.51.0-nightly (04caa632d 2021-01-30)
binary: rustc
commit-hash: 04caa632dd10c2bf64b69524c7f9c4c30a436877
commit-date: 2021-01-30
host: x86_64-apple-darwin
release: 1.51.0-nightly
LLVM version: 11.0.1

Error output

error: internal compiler error: failed to process buffered lint here
   --> /Users/kitsonk/.cargo/registry/src/github.com-1ecc6299db9ec823/lspower-0.6.0/src/client.rs:262:13
    |
262 |             log::error!("failed to send notification")
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: delayed at /rustc/04caa632dd10c2bf64b69524c7f9c4c30a436877/compiler/rustc_lint/src/early.rs:384:18
    = note: this error: internal compiler error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

error: internal compiler error: failed to process buffered lint here
   --> /Users/kitsonk/.cargo/registry/src/github.com-1ecc6299db9ec823/lspower-0.6.0/src/client.rs:101:23
    |
101 |             Err(e) => log::error!("invalid JSON in `telemetry/event` notification: {}", e),
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: delayed at /rustc/04caa632dd10c2bf64b69524c7f9c4c30a436877/compiler/rustc_lint/src/early.rs:384:18
    = note: this error: internal compiler error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', compiler/rustc_errors/src/lib.rs:974:13
stack backtrace:
   0: _rust_begin_unwind
   1: std::panicking::begin_panic_fmt
   2: rustc_errors::HandlerInner::flush_delayed
   3: <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop
   4: core::ptr::drop_in_place<rustc_session::parse::ParseSess>
   5: <alloc::rc::Rc<T> as core::ops::drop::Drop>::drop
   6: core::ptr::drop_in_place<rustc_interface::interface::Compiler>
   7: rustc_span::with_source_map
   8: rustc_interface::interface::create_compiler_and_run
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.51.0-nightly (04caa632d 2021-01-30) running on x86_64-apple-darwin

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
end of query stack
error: could not compile `lspower`

[jonas-schievink]

duplicate of #81531